Kedenburg S, Gissibl T, Steinle T, Steinmann A, Giessen H
Opt Express. 2015 Apr 6;23(7):8281-9. doi: 10.1364/OE.23.008281.
We demonstrate supercontinuum generation in unspliced as well as in integrated CS(2)-filled capillary fibers at different pump wavelengths of 1030 nm, 1510 nm, and 1685 nm. A novel method for splicing a liquid-filled capillary fiber to a standard single-mode optical fiber is presented. This method is based on mechanical splicing using a direct-laser written polymer ferrule using a femtosecond two-photon polymerization process. We maintain mostly single-mode operation despite the multi-mode capability of the liquid-filled capillaries. The generated supercontinua exhibit a spectral width of over 1200 nm and 1000 nm for core diameters of 5 μm and 10 μm, respectively. This is an increase of more than 50 percent compared to previously reported values in the literature due to improved dispersion properties of the capillaries.
我们展示了在未拼接以及集成有CS₂的填充型毛细管光纤中，于1030纳米、1510纳米和1685纳米等不同泵浦波长下产生的超连续谱。提出了一种将填充液体的毛细管光纤与标准单模光纤进行拼接的新方法。该方法基于使用飞秒双光子聚合工艺直接激光写入聚合物插芯的机械拼接。尽管填充液体的毛细管具有多模能力，但我们大多保持单模运行。对于5微米和10微米的纤芯直径而言，所产生的超连续谱分别展现出超过1200纳米和1000纳米的光谱宽度。由于毛细管色散特性的改善，这比文献中先前报道的值增加了超过50%。
